South Barrington · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
South Barrington & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
33°
Thu, Sep 3
Coldest night
17°
Mon, Sep 7
Days with precip
3 / 14
of 14 forecast days
Nicest day
Sun, Sep 6
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
25° 18°
11% precip chance
Sat 12 – Sun 13 Sep
31° 17°
10% precip chance
Sat 19 – Sun 20 Sep
23° 15°
typical range
Sat 26 – Sun 27 Sep
23° 15°
typical range
30 days — South Barrington
14 forecast + 16 climatology
Mon · Today Light rain
30°21°19.7 mm⌄
Wind12 mph SW
Gusts34 mph
UV index6 – Moderate
Precip chance80%
Sunrise06:17
Sunset19:28
Tue · Tomorrow Mostly cloudy
31°24°0.2 mm⌄
Wind13 mph SW
Gusts33 mph
UV index8 – High
Precip chance22%
Sunrise06:18
Sunset19:26
Wednesday 2/9 Sunny
33°26°17%⌄
Wind12 mph SW
Gusts32 mph
UV index7 – High
Precip chance17%
Sunrise06:19
Sunset19:25
Thursday 3/9 Sunny
33°23°0.9 mm⌄
Wind9 mph W
Gusts26 mph
UV index8 – High
Precip chance36%
Sunrise06:20
Sunset19:23
Friday 4/9 Sunny
31°20°1.1 mm⌄
Wind10 mph NE
Gusts21 mph
UV index8 – Very high
Precip chance57%
Sunrise06:21
Sunset19:21
Saturday 5/9 Sunny
25°19°9%⌄
Wind10 mph E
Gusts21 mph
UV index6 – High
Precip chance9%
Sunrise06:22
Sunset19:20
Sunday 6/9 Mostly cloudy
24°18°11%⌄
Wind8 mph E
Gusts18 mph
UV index6 – High
Precip chance11%
Sunrise06:23
Sunset19:18
Monday 7/9 Mostly cloudy
27°17°0.2 mm⌄
Wind8 mph SE
Gusts18 mph
UV index6 – High
Precip chance21%
Sunrise06:24
Sunset19:16
Tuesday 8/9 Showers
28°19°5.1 mm⌄
Wind5 mph S
Gusts15 mph
UV index7 – High
Precip chance71%
Sunrise06:25
Sunset19:14
Wednesday 9/9 Sunny
29°19°4%⌄
Wind8 mph E
Gusts17 mph
UV index7 – High
Precip chance4%
Sunrise06:26
Sunset19:13
Thursday 10/9 Sunny
30°21°5%⌄
Wind8 mph E
Gusts12 mph
UV index8 – Very high
Precip chance5%
Sunrise06:27
Sunset19:11
Friday 11/9 Sunny
29°18°7%⌄
Wind13 mph NE
Gusts28 mph
UV index7 – High
Precip chance7%
Sunrise06:28
Sunset19:09
Saturday 12/9 Mostly cloudy
24°17°10%⌄
Wind13 mph NE
Gusts27 mph
UV index6 – High
Precip chance10%
Sunrise06:29
Sunset19:08
Sunday 13/9 Sunny
31°19°8%⌄
Wind7 mph SW
Gusts17 mph
UV index8 – Very high
Precip chance8%
Sunrise06:30
Sunset19:06
Monday 14/9 Rain (climatological)
23°15°6.5 mm⌄
Day≈20–26°
Night≈12–18°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
27°18°20%⌄
Day≈24–30°
Night≈15–21°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
27°18°4.3 mm⌄
Day≈24–30°
Night≈15–21°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
24°16°20%⌄
Day≈21–27°
Night≈13–19°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
23°15°20%⌄
Day≈20–26°
Night≈12–18°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
22°15°3.7 mm⌄
Day≈19–25°
Night≈12–18°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
24°16°20%⌄
Day≈21–27°
Night≈13–19°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
26°17°20%⌄
Day≈23–29°
Night≈14–20°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
27°18°6.3 mm⌄
Day≈24–30°
Night≈15–21°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
27°17°20%⌄
Day≈24–30°
Night≈14–20°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
23°15°20%⌄
Day≈20–26°
Night≈12–18°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
23°15°4.3 mm⌄
Day≈20–26°
Night≈12–18°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
22°15°20%⌄
Day≈19–25°
Night≈12–18°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
23°15°20%⌄
Day≈20–26°
Night≈12–18°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
26°17°4.5 mm⌄
Day≈23–29°
Night≈14–20°
Precip≈2.3 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for South Barrington, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.